Scumbag Man Switches to a Devoted Script [Quick Transmigration]

'''As a cannon-fodder second male lead, he gave his all only to end up as a stepping stone for the female lead. Given a second chance at life, he decides to turn over a new leaf and become a responsible, devoted man! A heartwarming slice-of-life story, the entrepreneurial journey of a small-time nobody. Tentative worlds: 1. The irresponsible slacker male supporting character of the 1990s 2. The hot-tempered male supporting character who abandoned his wife and children 3. The hypocritical, refined male supporting character 4. The career-obsessed STEM male supporting character 5. The male supporting character who returns to his village to inherit the family business 6. The taciturn, s...